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You searched for: Journal Environmental research Remove constraint Journal: Environmental research Subject acidification Remove constraint Subject: acidification Subject Acidobacteria Remove constraint Subject: Acidobacteria Subject activated sludge Remove constraint Subject: activated sludge
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1. Alkaline aided thermophiles pretreatment of waste activated sludge to increase short chain fatty acids production: Microbial community evolution by alkaline on hydrolysis and fermentation

Author:
Chun-Xue Yang; Shuai Zhao; Ze-Chong Guo; Wen-Zong Liu; Ling Wang; Shao-Peng Yu; Bao-Ling Liu; Xue Cong
Source:
Environmental research 2020 v.186 pp. 109503
ISSN:
0013-9351
Subject:
Acidobacteria; Caloramator; acidification; activated sludge; chemical oxygen demand; fermentation; heat tolerance; hydrolysis; microbial communities; proteins; proteolysis; short chain fatty acids; thermophilic bacteria
Abstract:
... Adding alkaline into an anaerobic waste activated sludge (WAS) fermentation with thermophilic bacteria pretreatment could efficiently improve short-chain fatty acids (SCFAs) accumulation to 3550 ± 120 mg COD/L. The acidification rate in combined test was 21.2%, while that was 15.6% and 10.7% in sole thermophilic bacteria pretreatment and control tests respectively. Four distinct groups of microbes ...
DOI:
10.1016/j.envres.2020.109503

2. Characteristics of bacterial populations in an industrial scale petrochemical wastewater treatment plant: Composition, function and their association with environmental factors

Author:
Qinghong Wang; Jiahao Liang; Simin Zhang; Brandon A. Yoza; Qing X. Li; Yali Zhan; Huangfan Ye; Peng Zhao; Chunmao Chen
Source:
Environmental research 2020 v.189 pp. 109939
ISSN:
0013-9351
Subject:
Acidobacteria; Bacteroidetes; Chloroflexi; Planctomycetes; Proteobacteria; acidification; activated sludge; bacterial communities; biochemical oxygen demand; biochemical pathways; biofilters; biological treatment; caprolactam; community structure; hydrolysis; naphthalene; petroleum; phylogeny; research; toluene; total nitrogen; variance; wastewater; wastewater treatment
Abstract:
... The efficiency of petrochemical wastewater biological treatment is dependent upon complex bacterial communities. A well understanding of the structure and function of bacterial community and their association with environmental variables is essential for the elucidation of contaminant removal mechanisms and optimization of wastewater treatment processes. In this study, the bacterial communities an ...
DOI:
10.1016/j.envres.2020.109939
CHORUS:
10.1016/j.envres.2020.109939